Home / 15,407.68-21,262.10-9,745.52

Finding the Fourth Proportional to 15,407.68, 21,262.10 and 9,745.52

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Solution

The fourth proportional to 15,407.68, 21,262.10 and 9,745.52 is: 13,448.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,407.68 : 21,262.10 = 9,745.52 : x
  2. Step 2: Convert to fraction form
    15,407.68/21,262.10 = 9,745.52/x
  3. Step 3: Cross multiply
    15,407.68x = 21,262.10 × 9,745.52
  4. Step 4: Simplify right side
    15,407.68x = 207,210,220.79
  5. Step 5: Solve for x
    x = 207,210,220.79/15,407.68
  6. Step 6: Final answer
    x = 13,448.50

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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.