Home / 12,125.16-18,187.74-10,476.72

Finding the Fourth Proportional to 12,125.16, 18,187.74 and 10,476.72

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Solution

The fourth proportional to 12,125.16, 18,187.74 and 10,476.72 is: 15,715.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,125.16 : 18,187.74 = 10,476.72 : x
  2. Step 2: Convert to fraction form
    12,125.16/18,187.74 = 10,476.72/x
  3. Step 3: Cross multiply
    12,125.16x = 18,187.74 × 10,476.72
  4. Step 4: Simplify right side
    12,125.16x = 190,547,859.41
  5. Step 5: Solve for x
    x = 190,547,859.41/12,125.16
  6. Step 6: Final answer
    x = 15,715.08

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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.