Home / 15,562.81-21,459.65-10,518.29

Finding the Fourth Proportional to 15,562.81, 21,459.65 and 10,518.29

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Solution

The fourth proportional to 15,562.81, 21,459.65 and 10,518.29 is: 14,503.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,562.81 : 21,459.65 = 10,518.29 : x
  2. Step 2: Convert to fraction form
    15,562.81/21,459.65 = 10,518.29/x
  3. Step 3: Cross multiply
    15,562.81x = 21,459.65 × 10,518.29
  4. Step 4: Simplify right side
    15,562.81x = 225,718,822.00
  5. Step 5: Solve for x
    x = 225,718,822.00/15,562.81
  6. Step 6: Final answer
    x = 14,503.73

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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.