Home / 9,117.36-13,672.80-2,875.50

Finding the Fourth Proportional to 9,117.36, 13,672.80 and 2,875.50

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Solution

The fourth proportional to 9,117.36, 13,672.80 and 2,875.50 is: 4,312.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,117.36 : 13,672.80 = 2,875.50 : x
  2. Step 2: Convert to fraction form
    9,117.36/13,672.80 = 2,875.50/x
  3. Step 3: Cross multiply
    9,117.36x = 13,672.80 × 2,875.50
  4. Step 4: Simplify right side
    9,117.36x = 39,316,136.40
  5. Step 5: Solve for x
    x = 39,316,136.40/9,117.36
  6. Step 6: Final answer
    x = 4,312.23

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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.