Home / 16,988.68-25,457.05-7,122.58

Finding the Fourth Proportional to 16,988.68, 25,457.05 and 7,122.58

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Solution

The fourth proportional to 16,988.68, 25,457.05 and 7,122.58 is: 10,672.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,988.68 : 25,457.05 = 7,122.58 : x
  2. Step 2: Convert to fraction form
    16,988.68/25,457.05 = 7,122.58/x
  3. Step 3: Cross multiply
    16,988.68x = 25,457.05 × 7,122.58
  4. Step 4: Simplify right side
    16,988.68x = 181,319,875.19
  5. Step 5: Solve for x
    x = 181,319,875.19/16,988.68
  6. Step 6: Final answer
    x = 10,672.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.