Home / 10,830.49-14,948.45-6,856.90

Finding the Fourth Proportional to 10,830.49, 14,948.45 and 6,856.90

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Solution

The fourth proportional to 10,830.49, 14,948.45 and 6,856.90 is: 9,464.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,830.49 : 14,948.45 = 6,856.90 : x
  2. Step 2: Convert to fraction form
    10,830.49/14,948.45 = 6,856.90/x
  3. Step 3: Cross multiply
    10,830.49x = 14,948.45 × 6,856.90
  4. Step 4: Simplify right side
    10,830.49x = 102,500,026.81
  5. Step 5: Solve for x
    x = 102,500,026.81/10,830.49
  6. Step 6: Final answer
    x = 9,464.02

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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.