Home / 8,970.05-12,377.27-4,991.15

Finding the Fourth Proportional to 8,970.05, 12,377.27 and 4,991.15

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Solution

The fourth proportional to 8,970.05, 12,377.27 and 4,991.15 is: 6,887.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,970.05 : 12,377.27 = 4,991.15 : x
  2. Step 2: Convert to fraction form
    8,970.05/12,377.27 = 4,991.15/x
  3. Step 3: Cross multiply
    8,970.05x = 12,377.27 × 4,991.15
  4. Step 4: Simplify right side
    8,970.05x = 61,776,755.26
  5. Step 5: Solve for x
    x = 61,776,755.26/8,970.05
  6. Step 6: Final answer
    x = 6,887.00

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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.