Home / 13,955.72-19,256.18-8,916.07

Finding the Fourth Proportional to 13,955.72, 19,256.18 and 8,916.07

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Solution

The fourth proportional to 13,955.72, 19,256.18 and 8,916.07 is: 12,302.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,955.72 : 19,256.18 = 8,916.07 : x
  2. Step 2: Convert to fraction form
    13,955.72/19,256.18 = 8,916.07/x
  3. Step 3: Cross multiply
    13,955.72x = 19,256.18 × 8,916.07
  4. Step 4: Simplify right side
    13,955.72x = 171,689,448.81
  5. Step 5: Solve for x
    x = 171,689,448.81/13,955.72
  6. Step 6: Final answer
    x = 12,302.44

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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.