Home / 12,782.03-17,637.95-7,475.81

Finding the Fourth Proportional to 12,782.03, 17,637.95 and 7,475.81

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Solution

The fourth proportional to 12,782.03, 17,637.95 and 7,475.81 is: 10,315.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,782.03 : 17,637.95 = 7,475.81 : x
  2. Step 2: Convert to fraction form
    12,782.03/17,637.95 = 7,475.81/x
  3. Step 3: Cross multiply
    12,782.03x = 17,637.95 × 7,475.81
  4. Step 4: Simplify right side
    12,782.03x = 131,857,925.61
  5. Step 5: Solve for x
    x = 131,857,925.61/12,782.03
  6. Step 6: Final answer
    x = 10,315.88

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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.