Home / 18,931.48-26,126.67-10,867.74

Finding the Fourth Proportional to 18,931.48, 26,126.67 and 10,867.74

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Solution

The fourth proportional to 18,931.48, 26,126.67 and 10,867.74 is: 14,998.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,931.48 : 26,126.67 = 10,867.74 : x
  2. Step 2: Convert to fraction form
    18,931.48/26,126.67 = 10,867.74/x
  3. Step 3: Cross multiply
    18,931.48x = 26,126.67 × 10,867.74
  4. Step 4: Simplify right side
    18,931.48x = 283,937,856.63
  5. Step 5: Solve for x
    x = 283,937,856.63/18,931.48
  6. Step 6: Final answer
    x = 14,998.19

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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.