Home / 12,746.16-17,587.80-7,156.08

Finding the Fourth Proportional to 12,746.16, 17,587.80 and 7,156.08

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Solution

The fourth proportional to 12,746.16, 17,587.80 and 7,156.08 is: 9,874.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,746.16 : 17,587.80 = 7,156.08 : x
  2. Step 2: Convert to fraction form
    12,746.16/17,587.80 = 7,156.08/x
  3. Step 3: Cross multiply
    12,746.16x = 17,587.80 × 7,156.08
  4. Step 4: Simplify right side
    12,746.16x = 125,859,703.82
  5. Step 5: Solve for x
    x = 125,859,703.82/12,746.16
  6. Step 6: Final answer
    x = 9,874.32

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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.