Home / 15,762.17-21,783.15-12,925.14

Finding the Fourth Proportional to 15,762.17, 21,783.15 and 12,925.14

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Solution

The fourth proportional to 15,762.17, 21,783.15 and 12,925.14 is: 17,862.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,762.17 : 21,783.15 = 12,925.14 : x
  2. Step 2: Convert to fraction form
    15,762.17/21,783.15 = 12,925.14/x
  3. Step 3: Cross multiply
    15,762.17x = 21,783.15 × 12,925.14
  4. Step 4: Simplify right side
    15,762.17x = 281,550,263.39
  5. Step 5: Solve for x
    x = 281,550,263.39/15,762.17
  6. Step 6: Final answer
    x = 17,862.41

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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.