Home / 10,715.16-14,774.01-9,220.49

Finding the Fourth Proportional to 10,715.16, 14,774.01 and 9,220.49

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Solution

The fourth proportional to 10,715.16, 14,774.01 and 9,220.49 is: 12,713.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,715.16 : 14,774.01 = 9,220.49 : x
  2. Step 2: Convert to fraction form
    10,715.16/14,774.01 = 9,220.49/x
  3. Step 3: Cross multiply
    10,715.16x = 14,774.01 × 9,220.49
  4. Step 4: Simplify right side
    10,715.16x = 136,223,611.46
  5. Step 5: Solve for x
    x = 136,223,611.46/10,715.16
  6. Step 6: Final answer
    x = 12,713.17

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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.