Home / 13,307.88-19,927.74-12,913.72

Finding the Fourth Proportional to 13,307.88, 19,927.74 and 12,913.72

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Solution

The fourth proportional to 13,307.88, 19,927.74 and 12,913.72 is: 19,337.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,307.88 : 19,927.74 = 12,913.72 : x
  2. Step 2: Convert to fraction form
    13,307.88/19,927.74 = 12,913.72/x
  3. Step 3: Cross multiply
    13,307.88x = 19,927.74 × 12,913.72
  4. Step 4: Simplify right side
    13,307.88x = 257,341,156.35
  5. Step 5: Solve for x
    x = 257,341,156.35/13,307.88
  6. Step 6: Final answer
    x = 19,337.50

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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.