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Finding the Fourth Proportional to 9,772.40, 14,649.35 and 8,877.45

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Solution

The fourth proportional to 9,772.40, 14,649.35 and 8,877.45 is: 13,307.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,772.40 : 14,649.35 = 8,877.45 : x
  2. Step 2: Convert to fraction form
    9,772.40/14,649.35 = 8,877.45/x
  3. Step 3: Cross multiply
    9,772.40x = 14,649.35 × 8,877.45
  4. Step 4: Simplify right side
    9,772.40x = 130,048,827.77
  5. Step 5: Solve for x
    x = 130,048,827.77/9,772.40
  6. Step 6: Final answer
    x = 13,307.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.