Home / 7,876.23-10,869.35-4,339.63

Finding the Fourth Proportional to 7,876.23, 10,869.35 and 4,339.63

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Solution

The fourth proportional to 7,876.23, 10,869.35 and 4,339.63 is: 5,988.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,876.23 : 10,869.35 = 4,339.63 : x
  2. Step 2: Convert to fraction form
    7,876.23/10,869.35 = 4,339.63/x
  3. Step 3: Cross multiply
    7,876.23x = 10,869.35 × 4,339.63
  4. Step 4: Simplify right side
    7,876.23x = 47,168,957.34
  5. Step 5: Solve for x
    x = 47,168,957.34/7,876.23
  6. Step 6: Final answer
    x = 5,988.77

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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.