Home / 13,263.76-19,877.04-10,478.32

Finding the Fourth Proportional to 13,263.76, 19,877.04 and 10,478.32

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Solution

The fourth proportional to 13,263.76, 19,877.04 and 10,478.32 is: 15,702.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,263.76 : 19,877.04 = 10,478.32 : x
  2. Step 2: Convert to fraction form
    13,263.76/19,877.04 = 10,478.32/x
  3. Step 3: Cross multiply
    13,263.76x = 19,877.04 × 10,478.32
  4. Step 4: Simplify right side
    13,263.76x = 208,277,985.77
  5. Step 5: Solve for x
    x = 208,277,985.77/13,263.76
  6. Step 6: Final answer
    x = 15,702.79

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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.