Home / 12,947.85-17,856.86-10,110.83

Finding the Fourth Proportional to 12,947.85, 17,856.86 and 10,110.83

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Solution

The fourth proportional to 12,947.85, 17,856.86 and 10,110.83 is: 13,944.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,947.85 : 17,856.86 = 10,110.83 : x
  2. Step 2: Convert to fraction form
    12,947.85/17,856.86 = 10,110.83/x
  3. Step 3: Cross multiply
    12,947.85x = 17,856.86 × 10,110.83
  4. Step 4: Simplify right side
    12,947.85x = 180,547,535.96
  5. Step 5: Solve for x
    x = 180,547,535.96/12,947.85
  6. Step 6: Final answer
    x = 13,944.21

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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.