Home / 9,070.48-12,516.84-5,343.76

Finding the Fourth Proportional to 9,070.48, 12,516.84 and 5,343.76

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Solution

The fourth proportional to 9,070.48, 12,516.84 and 5,343.76 is: 7,374.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,070.48 : 12,516.84 = 5,343.76 : x
  2. Step 2: Convert to fraction form
    9,070.48/12,516.84 = 5,343.76/x
  3. Step 3: Cross multiply
    9,070.48x = 12,516.84 × 5,343.76
  4. Step 4: Simplify right side
    9,070.48x = 66,886,988.92
  5. Step 5: Solve for x
    x = 66,886,988.92/9,070.48
  6. Step 6: Final answer
    x = 7,374.14

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Double scale
Find fourth proportional to 9,071.48, 12,518.22 and 5,344.76
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.