Home / 15,525.12-21,409.78-10,432.15

Finding the Fourth Proportional to 15,525.12, 21,409.78 and 10,432.15

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Solution

The fourth proportional to 15,525.12, 21,409.78 and 10,432.15 is: 14,386.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,525.12 : 21,409.78 = 10,432.15 : x
  2. Step 2: Convert to fraction form
    15,525.12/21,409.78 = 10,432.15/x
  3. Step 3: Cross multiply
    15,525.12x = 21,409.78 × 10,432.15
  4. Step 4: Simplify right side
    15,525.12x = 223,350,036.43
  5. Step 5: Solve for x
    x = 223,350,036.43/15,525.12
  6. Step 6: Final answer
    x = 14,386.36

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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.