Home / 14,389.10-19,856.31-8,015.48

Finding the Fourth Proportional to 14,389.10, 19,856.31 and 8,015.48

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Solution

The fourth proportional to 14,389.10, 19,856.31 and 8,015.48 is: 11,061.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,389.10 : 19,856.31 = 8,015.48 : x
  2. Step 2: Convert to fraction form
    14,389.10/19,856.31 = 8,015.48/x
  3. Step 3: Cross multiply
    14,389.10x = 19,856.31 × 8,015.48
  4. Step 4: Simplify right side
    14,389.10x = 159,157,756.40
  5. Step 5: Solve for x
    x = 159,157,756.40/14,389.10
  6. Step 6: Final answer
    x = 11,061.00

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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.