Home / 13,274.40-18,319.88-7,307.32

Finding the Fourth Proportional to 13,274.40, 18,319.88 and 7,307.32

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Solution

The fourth proportional to 13,274.40, 18,319.88 and 7,307.32 is: 10,084.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,274.40 : 18,319.88 = 7,307.32 : x
  2. Step 2: Convert to fraction form
    13,274.40/18,319.88 = 7,307.32/x
  3. Step 3: Cross multiply
    13,274.40x = 18,319.88 × 7,307.32
  4. Step 4: Simplify right side
    13,274.40x = 133,869,225.52
  5. Step 5: Solve for x
    x = 133,869,225.52/13,274.40
  6. Step 6: Final answer
    x = 10,084.77

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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.