Home / 12,935.45-19,403.29-7,088.87

Finding the Fourth Proportional to 12,935.45, 19,403.29 and 7,088.87

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Solution

The fourth proportional to 12,935.45, 19,403.29 and 7,088.87 is: 10,633.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,935.45 : 19,403.29 = 7,088.87 : x
  2. Step 2: Convert to fraction form
    12,935.45/19,403.29 = 7,088.87/x
  3. Step 3: Cross multiply
    12,935.45x = 19,403.29 × 7,088.87
  4. Step 4: Simplify right side
    12,935.45x = 137,547,400.38
  5. Step 5: Solve for x
    x = 137,547,400.38/12,935.45
  6. Step 6: Final answer
    x = 10,633.37

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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.