Home / 13,970.48-20,948.16-6,935.05

Finding the Fourth Proportional to 13,970.48, 20,948.16 and 6,935.05

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Solution

The fourth proportional to 13,970.48, 20,948.16 and 6,935.05 is: 10,398.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,970.48 : 20,948.16 = 6,935.05 : x
  2. Step 2: Convert to fraction form
    13,970.48/20,948.16 = 6,935.05/x
  3. Step 3: Cross multiply
    13,970.48x = 20,948.16 × 6,935.05
  4. Step 4: Simplify right side
    13,970.48x = 145,276,432.27
  5. Step 5: Solve for x
    x = 145,276,432.27/13,970.48
  6. Step 6: Final answer
    x = 10,398.81

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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.