Home / 14,395.70-19,826.34-12,405.53

Finding the Fourth Proportional to 14,395.70, 19,826.34 and 12,405.53

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Solution

The fourth proportional to 14,395.70, 19,826.34 and 12,405.53 is: 17,085.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,395.70 : 19,826.34 = 12,405.53 : x
  2. Step 2: Convert to fraction form
    14,395.70/19,826.34 = 12,405.53/x
  3. Step 3: Cross multiply
    14,395.70x = 19,826.34 × 12,405.53
  4. Step 4: Simplify right side
    14,395.70x = 245,956,156.53
  5. Step 5: Solve for x
    x = 245,956,156.53/14,395.70
  6. Step 6: Final answer
    x = 17,085.40

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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.