Home / 14,312.08-19,747.35-12,420.32

Finding the Fourth Proportional to 14,312.08, 19,747.35 and 12,420.32

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Solution

The fourth proportional to 14,312.08, 19,747.35 and 12,420.32 is: 17,137.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,312.08 : 19,747.35 = 12,420.32 : x
  2. Step 2: Convert to fraction form
    14,312.08/19,747.35 = 12,420.32/x
  3. Step 3: Cross multiply
    14,312.08x = 19,747.35 × 12,420.32
  4. Step 4: Simplify right side
    14,312.08x = 245,268,455.52
  5. Step 5: Solve for x
    x = 245,268,455.52/14,312.08
  6. Step 6: Final answer
    x = 17,137.17

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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.