Home / 14,287.36-19,715.52-8,700.16

Finding the Fourth Proportional to 14,287.36, 19,715.52 and 8,700.16

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Solution

The fourth proportional to 14,287.36, 19,715.52 and 8,700.16 is: 12,005.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,287.36 : 19,715.52 = 8,700.16 : x
  2. Step 2: Convert to fraction form
    14,287.36/19,715.52 = 8,700.16/x
  3. Step 3: Cross multiply
    14,287.36x = 19,715.52 × 8,700.16
  4. Step 4: Simplify right side
    14,287.36x = 171,528,178.48
  5. Step 5: Solve for x
    x = 171,528,178.48/14,287.36
  6. Step 6: Final answer
    x = 12,005.59

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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.