Home / 12,688.02-17,523.81-10,715.22

Finding the Fourth Proportional to 12,688.02, 17,523.81 and 10,715.22

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Solution

The fourth proportional to 12,688.02, 17,523.81 and 10,715.22 is: 14,799.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,688.02 : 17,523.81 = 10,715.22 : x
  2. Step 2: Convert to fraction form
    12,688.02/17,523.81 = 10,715.22/x
  3. Step 3: Cross multiply
    12,688.02x = 17,523.81 × 10,715.22
  4. Step 4: Simplify right side
    12,688.02x = 187,771,479.39
  5. Step 5: Solve for x
    x = 187,771,479.39/12,688.02
  6. Step 6: Final answer
    x = 14,799.12

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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.