Home / 15,607.84-21,534.48-9,317.92

Finding the Fourth Proportional to 15,607.84, 21,534.48 and 9,317.92

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Solution

The fourth proportional to 15,607.84, 21,534.48 and 9,317.92 is: 12,856.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,607.84 : 21,534.48 = 9,317.92 : x
  2. Step 2: Convert to fraction form
    15,607.84/21,534.48 = 9,317.92/x
  3. Step 3: Cross multiply
    15,607.84x = 21,534.48 × 9,317.92
  4. Step 4: Simplify right side
    15,607.84x = 200,656,561.88
  5. Step 5: Solve for x
    x = 200,656,561.88/15,607.84
  6. Step 6: Final answer
    x = 12,856.14

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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.