Home / 15,526.34-21,424.56-8,810.63

Finding the Fourth Proportional to 15,526.34, 21,424.56 and 8,810.63

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Solution

The fourth proportional to 15,526.34, 21,424.56 and 8,810.63 is: 12,157.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,526.34 : 21,424.56 = 8,810.63 : x
  2. Step 2: Convert to fraction form
    15,526.34/21,424.56 = 8,810.63/x
  3. Step 3: Cross multiply
    15,526.34x = 21,424.56 × 8,810.63
  4. Step 4: Simplify right side
    15,526.34x = 188,763,871.07
  5. Step 5: Solve for x
    x = 188,763,871.07/15,526.34
  6. Step 6: Final answer
    x = 12,157.65

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Double scale
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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.