Home / 9,070.76-12,518.04-5,712.30

Finding the Fourth Proportional to 9,070.76, 12,518.04 and 5,712.30

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Solution

The fourth proportional to 9,070.76, 12,518.04 and 5,712.30 is: 7,883.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,070.76 : 12,518.04 = 5,712.30 : x
  2. Step 2: Convert to fraction form
    9,070.76/12,518.04 = 5,712.30/x
  3. Step 3: Cross multiply
    9,070.76x = 12,518.04 × 5,712.30
  4. Step 4: Simplify right side
    9,070.76x = 71,506,799.89
  5. Step 5: Solve for x
    x = 71,506,799.89/9,070.76
  6. Step 6: Final answer
    x = 7,883.22

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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.